Search a number
-
+
2949908900 = 225229499089
BaseRepresentation
bin1010111111010100…
…0000100110100100
321121120202220021012
42233311000212210
522020134041100
61204414441352
7133046545331
oct25765004644
97546686235
102949908900
111284168244
126a3b03258
133801c6833
141ddac7988
15123e9c135
hexafd409a4

2949908900 has 18 divisors (see below), whose sum is σ = 6401302530. Its totient is φ = 1179963520.

The previous prime is 2949908887. The next prime is 2949908909. The reversal of 2949908900 is 98099492.

It can be written as a sum of positive squares in 3 ways, for example, as 324576256 + 2625332644 = 18016^2 + 51238^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (2949908909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14749445 + ... + 14749644.

Almost surely, 22949908900 is an apocalyptic number.

2949908900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2949908900 is an abundant number, since it is smaller than the sum of its proper divisors (3451393630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2949908900 is a wasteful number, since it uses less digits than its factorization.

2949908900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29499103 (or 29499096 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 2949908900 is about 54313.0638060495. The cubic root of 2949908900 is about 1434.1773785991.

The spelling of 2949908900 in words is "two billion, nine hundred forty-nine million, nine hundred eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 29499089 58998178 117996356 147495445 294990890 589981780 737477225 1474954450 2949908900